Cording-machine



2 SHEETSSHEET I.

INVENTOI? clasej lfT/rzh TTOHNEY Patented Mar. 16, 1920.,

J. FINKELSTEIN.

CORDING MACHINE.

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A TTOHNEY JOSEPH FINKELSTEIN, OF BROOKLYN, NEW YORK.

- CORDING-MACHINE.

Specification of Letters Patent. Patented Mar. 16, 1920.

Application filed February 26, 1919., Serial No. 279,272.

1'0 all u'lwm if may concern:

Be it known that I, J osnru FINKELSTEIN, a citizen of the United States, and a resident of the borough of Brooklyn, county of Kings, and State of New York, have in vented certain new and useful Improvements in Coming-Machines, of which the following is a specification.

The present invention relates to cording machines, the embodiment disclosed herein being particularly intended for the n1anufactul'c of covered or coated cord, that is, a cord having a twisted core or heart, and an outer covering placed there over, the core. for instance, being of cotton while the outer coating is of silk. invention is to provide a machine of this character which will be eflicient in operation, i

and with which a better product may be produced, with greater facility, than has heretofore been possible.

More particular objects are to provide a novel twistin means, to the end that the cording machine will be greatly simplified.

t breakage of the. strands or threads will be eliminated to a great extent, the machine may be run at. very much greater speed than has heretofore been possible, and in which breakage of the threads may be detected during operation of the machine, amtthe bobbins may be renewed or the thread repaired without stopping the machine.

Further objects are to enable the twisting of cord in either direction with the same machine and to any desired degree of tightness, and inwhich the cord as it is twisted is immediately taken up sothat the twisting does not run down to the threads as they are fed from the bobbin.

A machine according to my invention consists generally of a stationary support for the bobbins. and twisting means which forms the cord and takes up the same. as it is formed.

In such a machine centrifugal forces upon the bobbins are entirely eliminated, so that strains upon the strands and breakage is re duced to a negligible quantity. Very fine threads of silk or other substance may therefore be used without constant danger of breakage and breakage of the strands may furthermore be immediately detected while the machine is running. This is not possible in those machines in which the bobbins are carried by the revolving twisting means.

With the above and other objects in view,

claims.

An object of the an embodiment of my invention is shown in the accompanying drawing and this embodiment will be hereinafter more fully described with reference thereto, and the invention will be finally pointed out in the In the accompanying drawing: Figure l is a side elevation of embodying my invention;

Fig. 2 is a vertical sectional view thereof a machine taken along the line 22 of Fi 1;

' Fig. 3 is a horizontal sectiona view taken along the line 33 of Fig. 2;

Fig. 4 is an enlarged vertical sectional view of a portion of the machine;

Fig. 5 is a horizontal sectional view taken along the line 5-5 of Fig. 4'

upper end of the core ide;

Fig. 7 is a front v1ew partly in section of the core guide; and

Fig.8 is a viewof certain parts of the machine arranged to twist cord in an opposite direction.

Similar reference characters indicate corresponding parts throughout the several figures of'the drawing.

Referring to the drawing, the embodi ment of my invention shown therein comprises a lower stationary bobbln support A,

Fig. 6 is a detailed sectiorial View of the and an upper revolving cord support and twister B, adapted to twist the strands or threads as they are fed from the bobbin, and

to take up and receive the twisted cordgradually as it is formed.

The bobbin support consists of an upper plate or table 10 supported at its four corners upon angle-shaped standards 11, the table being provided at opposite sides with semi-circular cut-out portion as at 12 and 13, to make more accessible the bobbins supported beneath the same, and which will be .presently described more particularly. In

spaced relation below the plate 10, there is supported between the standards 11 a shelf support 14 provided centrally with an opening 15 having a porcelain bushing 16 set therein, the passage through the said bushing being slightly flared and rounded at its ends.

Upon three sides of the support A and having their ends secured in the sides of standards 11. there are provided below the shelf 14 a plurality of bobbin supporting rods or shafts 17, these rods at the opposed sides of the support being disposed between V passage of the bushing 16.

Upon the shelf 14 there are provided in several annular rows concentric to the opening 15 a plurality of'upright posts 19.. In actual practice, there is preferably a much 5 greater number of these posts than shown, and also a greater number of spools 18, but for the sake of clearness I have illustrated a relati'vely smaller number. Bobbin spools 0 are loosely mounted upon the posts 19. 4 '20 bove the shelf 14, there is supported upon standards 21, a guide-plate 22 of truncated cone shape, having a central opening 23 therein relatively larger than and concentrlc to the opening 15-, and provided at its base 25 witha lateral fiange'24 having a plurality of eyelets 25 therein through which the strands 20 from the bobbin spools 20 pass upwardly;

The strands 18 from the bobbin spools 18,

which may be called the core strands, pass from the opening ,15 through a guide member 26, having an open slot or groove 27 therein of semi-elliptical cross-section, the said guide being held upon an upright supporting bar 28 by means of a clam ing late 29, screws 30 disposed at each side 0 the member 26 connecting the said plate to the bar and tightly clamping ,the same in place. The member 26 is preferably square in crosssectionto prevent turning.

The base 31 of the bar 28 is adjustably, fremovably and slidably mounted upon the shelf 14 beneath a slotted holding piece or strap 32. secured to the shelf by screws 33, and having in its upper side a set screw 34 'which engages the base 31 to fixed position.

The upper end of? the guide member 26 is tapered as at 35, and a cone-shaped tubular cap 36 is placed there-over with a wedgmg fit, the core strands 18 passing upwardly 5 0 through the reduced end thereof. The

strands 18.may be very readily laid in the open slot of the guide member 26, and their ends passed upwardly through the cap 36.

The cap 36, as also the guide 26 may be replaced when they become worn, and the adjustment of the bar 31 permits of the accurate positioning of the slot 27 relat1vely to ,the opening; 15, when the same or different sized guide members are used.

' 4 The plate 10 is provided with a central opening 37 having an upwardly offset inwardly extending lateral plane 37 at its periphery, to the under side of which a eucular plate 38 is secured by means of bolts '65 39, the same plate being provided centrally 7 is'enga'iged, the surfaces of the said portion with an u wardly extending tubular beariu r 40 tapere at its upper portion as at 41, an within the opening of which the upper capped end of the guide member 26 is disposed, the end of the cap being substantiall flush with the end of the bearing, an annu a'r'space being rovided about the thecap through which t e strands 20 pass exteriorly of the cap and in cone-shape, and are brought together above the cap and about the core strands 18 passing upwardly from the cap.

The revolving cord support and twister A consists of a rectangular frame 42.disposed within ,an inverted U-shaped standard 43 secured to the plate 12 at 44 and 45, and provided at its lower portion with a circular ase 46 having at its under side a depending annular flange 47, between which and the bearing 40 there are interposed antifriction ball-bearin sets 48 and 49. A tapered opening 50 1s provided in the plate, in which the tapered end 41 of the bearing 41 an the opening being placed apart slightly as at 51 to prevent frictional contact.

At the u per end of the frame 42 there is provided a caring hub 52 having a shoulder 53 within its bore. A hearing 54 .is pro- "vided at the u per end of the standard 43 within which t ere is secured by set screws 55 a depending hanger 56, which extends thrpugh the bore-at the bearing hub 52 and is provided at its lower portion with a shouldered flange 57, which extends beneath the shoulder 53, anti-friction thrust bearings 58 bein interposed there between, thereby revolub y supporting the frame 42. Ballbearings 59 and 60 are interposed between the c lindrical surfaces at the bore of the ..hub and the hanger, and thrust bearings 61 are disposed with-in a recess 62 at the" upper end of the hub and engage the lower surface of thebearing 54. At thelower end of the hanger 56, there is rovided'a threadedextension 63 upon w ich there is secured a stationary circular disk 64 disposed within the frame 42, and held against-rotation by a set screw 65. Adjustment of the hanger is afforded by means of the upper threaded end 56 upon which there is provided an adjustment mit 56", while the disk 64 may be adjusted; by turning the same upon the threaded extension 63, the set screw 65 fixing the position of the same when adjusted.

Above the end of the cap 36 there is pro vided a groove roller 66 supported upon a bracket 67 the axis of the core strand 18 being substantially tangential to the groove of the roller. Extra screw'holes 68 are tapped into the base 46, so that the bracket may be interchangeably mounted to position the roller 66 at either side of the upwardly moving strands, the purpose of which is to 4 pear.

enable the twisting of the cord in either direction as will hereinafter more fully ap- The corded strands after twisting, pass from the roller 66 over a cylindrical elongated roller 69 mounted [1)011 a shaft 70, and thence beneath the sald roller 69 I to a guide roller 71 slidably and loosely mounted u on a shaft 72 having its ends supported in brackets 73 and 74 secured to the late 46. The cord then passes up- War 1 to 'a winding drum 75 mounted within the frame 4-2 upon a shaft 76 having its ends secured in the upright portions of the said frame. 1

A shaft 77 is provided in the frame 42 above the drum 75, and has mounted thereon a friction wheel- 78, frictionally enga ing the under surface of the stationary dis 64 and adjustable along the shaft 77 to an position between the center and the periphery of the said disk. A beveled gear 794 is provided upon the projecting end of the shaft 77, and meshes with a beveled gear 80 provided at the upper end of a shaft 81journaled'in brackets 82 and 83 secured to the frame 42, a beveled gear 84 atthe lower end of the said shaft 81 meshing witha beveled ear 85 rovided upon the end of the sha 70. ulleys 86 and 87 are provided respectively upon the shaft 70 and the drum 75, and are connected by a drive belt 88. The frame 42 is rotated by means of a belt 89 extending to a suitable motor not shown). and passing over the flange 4 of the base 46. I

As the frame revolves, the strands 20 and the core strands 18* are twisted at a point between the roller 66 and the end of the cap 36, the strands 20 twisting on and sliding ofi evenly from the cap 36 completel covering the strands 18, the complete and twisted cord passing from the roller 66 to the winding drum, 75, the roller 69fand the said drum beingcontinuously rotated by the friction drive 78 to continually take up the cord as it is formed,

the position of the friction drive determining the degree of twist. As the twisted cord is immediately taken up as it is formed, the regular twisting action will be continuous at one point, but will not pass down to the threads being fed from the bobbin. The

.frame 42 may be rotated at any desired speed and by adjusting the position of the friction wheel 78 relatively to the periphery of the stationary disk 64 the degree of twist ofthe'cord may be accurately regulated.

Upon the same machine the cord may be twisted in an opposite direction by changing the position of the roller 66 as above pointed out, and carrying the cord over the pulleys 69 in an op osite direction and under a roller 90 similar to the roller 71,

but disposed u n a shaft 91 supported in brackets 92 an ,93 at the opposite side of other bobbin spools ceiving drum, as shown in Fig. 8 the frame being rotated intlie o posite direction by reversing the belt 8!). ithout this arrangerment the turning of the frame in'thc opposite direction will cause the strands to move downward] instead of upwardly,

I have ilustratcd and described a preferred and satisfactory embodiment of my invention, but it is obvious that changes may be made therein withinthe spirit and scope thereof as defined in claims. I claim:

1. In a cording machine, a support, a central guide carried by said sup ort and having a single guide opening, b0 )bin spools, a

the appended plurality of strands from .said bobbin spools adapted to pass in grouped relation throughsaxd guide, twisting means adapted to revolve relative to said SllJPOl'lZ' and receive said strands from said guide to be twisted, the twisting point being exterior of the outlet of said guide, other bobbin spools carried by said support, guide means adapted to guide the, strands from said exterior of said first-mentioned guide to said twisting means, the twisting point of said last-mentioned strands bcin'g coincident to the twisting point of said first-mentioned strands,

said last-mentioned'strands annularly surrounding said -first-mentioned strands,

,said' strands adapted to be twisted at the twisting point in the same direction, said last-mentioned strands 'a'dapted to be laid as a covering about said first mentioned strands.

2. In a cording machine, a support, a central guide carried by said support provided with a restricted outlet, bobbin spools, a plurality of strands from said bobbin spools adapted to pass throughsaid guide and upwardly from said restricted outlet as a compact group, the strands being substantially in parallel relation with each other, twisting means adapted to revolve relatively to sald support and receive said strands from said guide to be twisted, the twisting point being exterior of said restricted outlet of said guide, other bobbin spools'carried by said support, anannular guide surrounding said first-mentioned guide forming an annular space exterior of said restricted outlet adapted to guide the strands from said other bobbin spools exteriorly of said group strands to said twisting means, the twisting point of said last-mentioned strands being coincident to the twisting point of said first-mentioned strands, and having substantially the same degree of twist, said last-mentioned strands annularly surrounding said first mentioned strands, said strands adapted to be simultaneously twisted in the same direction, said lastmentidned strands adapted to be laid as a covering about said first-mentioned strands:

3. In a cording machine, a support, a central core guide carried by said support,

bobbon' spools, strands from said bobbin spools adapted to pass through said core guide, said core guide comprising an elongated upright member having a vertically relatively to said support and receivestrands from said guide to be twisted.

4. In a cordin machine, a support provided with a shel i having a central openmg, a core guide disposed upon said shel above that opening, {bobbin spools beneath said shelf, strands from said bobbin spools adapted to pass upwardly through said cenv tral opening and said core ide to form a core, bobbin spools disposed upon said shelf about said guide, a uide member disposed about said core gui e and provided with a plurality of annularly arranged eyelets, strands from last-mentioned bobbin spools adapted to pass through said eyelets and about, said core as it issues from said core guide, and twisting means adapted to revolve relatively to said support and receive said strands from said bobbin spools to be twisted said strands from said last-mentioned bobbin spools adapted to be twisted about said strands from said-*first-mentioned bobbin spools. Y J

5. In a cording machine, a support, bobbin spools supported .by saidsupport, outlet means at the upper end of said support, strands from said bobbin spools adapted to pass through said outlet means, means adapted to revolve about said outlet means, a guide roller carried by said revolving means, the axis of said strands passing from said outlet means being substantially tangential tothe periphery of said guide roller, said strands adapted to be twisted between said roller and said outlet means to form a cord, and means adapted to enable the placing of said roller at either side of said outle V I 6. In a cording machine, asupport, bobbin spools carried' by said support, outlet means at the end of said support, strands from said bobbin spools adapted ,to pass through said outlet means, means adapted to revolve about said outlet means, a guide roller carried by said revolving means, said strands adapted to be twisted between said roller and said outlet means to form a cord a feed roller adaptedto receive said cor as it passes fromsaid guiderollerffriction transmission means operable b the revolving of said revolvingmeans a apted to rotate said feed roller to feed said strands from said bobbin spools, said transmission means being adjustable to vary the speed of said feed roller relatively to the speed of said revolving means to, regulate the twist.

7. In a; cording machine, a support, bobbin spools supported by said support, outlet means at the end of said support, strands fro said bobbin spools adapted to pass thr ugh said outlet means, means adapted to revolve about said outlet means, a guide roller carried b said revolvin means, said strands adapte to be twisted etween said roller and said outlet means to form a cord, a feed roller adapted to receive said cord as it passes from said guide roller, a stationary plate disposed annularly and in a plane perpendicular to the axis of said revolving means, a shaft carried by said revolving means and provided with a friction roller engaging said plate and adjustable toward and away from said axis to vary the speed of rotation of said shaft relatively to said revolving means, and transmission means connecting said shaft and said feed roller to rotate said feed roller to feed strands from said bobbinspools.

8. In a cording machine, a bobbin support, bobbin spools carried by said support, a guide member adapted to guide a plurahty of strands in grouped relation from said bobbin spools, guide means adapted to engage said grouped strands exterior of said guide member and in spaced relation thereto, means adapted to causea relative rotation between said guide means and said "guide member to twist the said strands at a point between said guide means and said guide member, other bobbin spools carried by said support, guide, means adapted to guide the strands from said other bobbin spools exterior of said guide member in annularly arranged relation about said grouped strands, the twisting point of said last mentioned strands being substantially coincident to the twisting point of the first mentionedstrands, said last mentioned strands annularly surrounding said first mentioned strands, said strands adapted to be twisted at the twisting point in the same direction, said last mentioned strands adapted to be laid as a covering about said first mentioned strands. In testimony that I clainf the foregoing as my invention, I have signed my name hereunder. I JOSEPH FINKELSTEIN. 

